Deep-well pump



(No Model.) 7 f2 Sheets-Sheet 1.

11 F. (100K. DEEP WELL PUMP.

No. 421,247. Patented Feb. 11, 1890.

Ilium (N0 Mbdel.)

flimmnmini 111mm}; A

A. F. COOK.

DEEP WELL'PUMP.

Patented Feb. 11 1890.

" ugggzaunum mm A Ill!" N4 PETERS. PhokrLilhugraphur. Washinmon, (LC.

2 SheetsSheet 2.

UNITED STATES PATENT OFFICE.

ALFRED F. COOK, OF ST. LOUIS, MISSOURI.

DEEP-WELL PUMP.

SPECIFICATION forming part of Letters Patent No. 421,247, dated February11, 1890.

Application filed August 1, 1889.

' had therein to the accompanying drawings, in

- ism.

which-- Figure 1 represents a side elevation of the pump-operatingmechanism; Fig. 2, a transverse sectional view on the line H H of Fig.1; Fig. 3, a view, partly in section and partly in side elevation, ofthe pump complete; Fig. 4, a sectional view of the pump-cylinder withits pistons, and Fig. 5 a View showing a slight modification of thepump-operating mechan- In the accompanying drawings, a designates thebase-plate of the pump, which plate is suitably secured to the platformof the well. Erect-ed upon the base-plate is a frame composed of thefour upright bars 7) and the platform 0, the ends of the said bars beingsecured to the base-plate and platform by means of nuts I), tapped onthe bars. J ournaled in suitable bearings upon the platform 0 are twogrooved pulleys d, and between the supporting-rods 1), near thebase-plate and in line with the upper pulleys, are two similar pulleys(1. Connecting the respective pairs of pulleys are endless cables orchains e, the lnner portlons of the cables passing through apertures cin the platform 0. suitably bolted upon the center of the platform 0,between the two pulleys d, is a vertical cylinder f, provided withsuitable stuffing-boxes in its heads for the passage of the piston orpump rod 9, this pistoinrod being provided with a suitable piston gWithin the cylinder. Attached to the upper end of the piston-rod is across head or arm h, secured to the ends of which are two depending con=necting rods t, these rods being guided in their movements by the earsg", cast upon the cylinder heads. These rods are further guided by beingpassed through the holes 0 in the platform. The lower ends of the rods2' are attached by means of clamps to the inner portions of therespective endless cables 6, whereby the said cables are moved inunison. Connecting the outer portions of the Mounted and Serial No.319,454. (No model.)

cables is a crossbar j, which is provided with apertures jfor thepassage of the inner portions of the cables and the reciprocatory rods2'. This cross-head j has secured to its center a tubular pump-rod k,which passes down through a stufiing-box in the base-plate, and isprovided at its lower end with a valved piston or plunger 7a, whichworks in the pump-cylinder Z.

The pump-cylinder is suitably secured within the well-tube, and isprovided with the usual check-valve l at its lower end.

The piston -rod 9 passes down centrally through the tubular pump-rod andits piston, and is provided with a valved plunger m at its lower end.That portion of the rod g which passes through and works in the plunger7a is formed rectangular in cross-section to prevent the plungers andtheir rods turning independently of each other, whereby accidentalunscrewing of the sections of the pump-rods is prevented and obviated.

In the device shown in Fig. 5 I show that only one of the endless cablesmay be employed without departing from the invention.

The cylinder f is provided with any suitable valve-chest and valvemechanism whereby to admit the motive fluid, which may be steam, air,water, or other fluid.

When motion is imparted to the piston in the cylinder f, the pumprod gand its plunger will be reciprocated in a corresponding direction, whilethe tubular rod and its plunger will, through the medium. of the rodsc'and endless cables, be simultaneously moved in the reverse direction.By thus operating the plungers of the pump in opposite directions asteady and continuous supply of water will be obtained.

By the arrangement of devices-shown and described the pistons will beoperated with a minimum of friction and wear and jar.

The invention is designed particularly for deep-well pumping; and itsessential feature consists in operating the oppositely-movable pistonssimultaneously with a vertical steamcylinder mounted directly over thewell and connected directly with the main piston of the pump.

Having thus fully described my invention, what I claim is Thecombination of a frame, a cylinder f,

loeing' provided with a valved plunger, a

pump-cylinder for this piston to Work in, a tubular pump-rod 7c,surrounding the rod 9 and provided at its lower end with a valvedplunger and at its upper end with an arm j,

IO a downwardly-extending rod or rods t', connected tothe upper end ofrod g, and an endless cable or cables connecting the rod i to the arm ofthe rod g, substantially as described.

In testimony whereof I affix my signature in presence of tWo Witnesses.

ALFRED F. COOK. Witnesses:

C. D. DAVIS, 'JNo. S. FINOH, Jr.

